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https://issues.apache.org/jira/browse/HBASE-12040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14148395#comment-14148395
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Devaraj Das commented on HBASE-12040:
-------------------------------------
I am looking at the overall run time of the test. With HBASE-11331, I see
{noformat}
2014-09-25 20:53:09,418 INFO [TestClient-0] hbase.PerformanceEvaluation:
Finished TestClient-0 in 517151ms over 100 rows
2014-09-25 20:53:09,418 INFO [main] hbase.PerformanceEvaluation:
[FilteredScanTest] Summary of timings (ms): [517151]
2014-09-25 20:53:09,418 INFO [main] hbase.PerformanceEvaluation:
[FilteredScanTest] Min: 517151ms Max: 517151ms Avg: 517151ms
{noformat}
Without HBASE-11331, the numbers (min, max, avg) are almost half.
There is no change in the configuration etc between the two runs. On the
configuration itself, I do have bucket cache configured on. I don't know yet if
that is causing any issue (but again the configs are unchanged in the runs)
{noformat}
<property>
<name>hbase.bucketcache.ioengine</name>
<value>offheap</value>
</property>
<property>
<name>hbase.bucketcache.percentage.in.combinedcache</name>
<value>0.7</value>
</property>
<property>
<name>hbase.bucketcache.size</name>
<value>1400</value>
</property>
{noformat}
P.S. Nick is on vacation this week. Maybe we should wait for him to come back
:-)
> Performances issues with FilteredScanTest
> ------------------------------------------
>
> Key: HBASE-12040
> URL: https://issues.apache.org/jira/browse/HBASE-12040
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.99.1
> Reporter: Jean-Marc Spaggiari
> Assignee: stack
> Priority: Blocker
> Fix For: 0.98.7, 0.99.1
>
> Attachments: at-HBASE-11331.html, pre-HBASE-11331.html
>
>
> While testing 0.99.0RC1 release performances, compared to 0.98.6, figured
> that:
> - FilteredScanTest is 100 times slower;
> - RandomReadTest is 1.5 times slower;
> - RandomSeekScanTest is 3.2 times slower;
> - RandomScanWithRange10Test is 1,2 times slower;
> - RandomScanWithRange100Test is 1,3 times slower;
> - RandomScanWithRange1000Test is 4 times slower;
> - SequentialReadTest is 1,7 times slower;
> - SequentialWriteTest is just a bit faster;
> - RandomWriteTest is just a bit faster;
> - GaussianRandomReadBenchmark is just a beat slower;
> - SequentialReadBenchmark is 1,1 times slower;
> - SequentialWriteBenchmark is 1,1 times slower;
> - UniformRandomReadBenchmark crashed;
> - UniformRandomSmallScan is 1,3 times slower.
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